html{
    scroll-behavior: smooth;
}

#s2_title_wrap {
    width: 380px;
    display: block;
}
#s2_main_title {
    font-size: 34px;
    font-weight: 500;
    letter-spacing: -1.5px;
}

#in_s3 {
    width: 67.5%;
}
.s3_box {
    float: left;
    width: 23.25%;
    margin-right: 2%;
    position: relative;
}
.s3_box img {
    width: 100%;
    transition-duration: 0.7s;
    transform: scale(1.3);
    position: relative;
    left: 25px;
}
.s3_box:last-child {
    margin-right: 0;
}
.s3_img_box {
    float: left;
    width: 100%;
    overflow: hidden;
    cursor: pointer;
    position: relative;
}
.s3_txt_box {
    float: left;
    width: 100%;
    height: 90px;
    background-color: #454545;
    transition-duration: 0.5s;
}
.s3_title {
    float: left;
    width: 100%;
    overflow: hidden;
    text-align: center;
    font-size: 22px;
    font-weight: 400;
    line-height: 90px;
    color: #ffffff;
}
.s3_in_title {
    float: left;
    width: 100%;
    overflow: hidden;
    position: absolute;
    top: 45%;
    text-align: center;
    display: none;
    z-index: 1;
    opacity: 0;
}
.s3_in_title a {
    font-size: 22px;
    font-weight: 400;
    color: #ffffff;
}
.s3_box:hover .s3_img_box img {
    filter: brightness(0.4);
    transform: scale(1.4);
}
.s3_box:hover .s3_in_title {
    display: block;
}

.in_s_title{
    float: left;
    display: inline-block;
    overflow: hidden;
    font-size: 20px;
    font-weight: 400;
    color: #ffffff;
    position: absolute;
    top: 100px;
    left: 38px;
}
#section_5 {
    background-color: #f5f3f3;
    margin-top: 80px;
}
#in_s5 {
    padding-top: 50px;
    width: 100%;
}

#in_s5 img{
    margin: 0 auto;
    width: 1600px;
    float: none;
}

#section_6 {
    padding-bottom: 100px;
    background-color: #f9f9f9;
}

#s6_title {
    margin: 0 auto;
    width: 35%;
    overflow: hidden;
    padding: 90px 0 100px 0;
}
#s6_title img {
    width: 100%;
}
.out_s6_box {
    float: left;
    width: 100%;
    overflow: hidden;
}
.in_s6_box {
    float: left;
    width: 20%;
    margin-right: 5.5%;
}
.in_s6_box img {
    width: 100%;
}
.in_s6_box:nth-child(4),
.in_s6_box:nth-child(8) {
    margin-right: 0;
}

@media all and (max-width:1600px){
    #in_s5 img{
        width: 1250px;
    }
}